发明名称 |
En blandad formiat- och bromidsaltlösning för användning i borrvätskor |
摘要 |
The use of a saturated aqueous salt solution, comprising at least one formate salt and at least one bromide salt, in a drilling fluid. Said saturated aqueous salt solution comprises 40-50 % by weight of water and 50-60 % by weight of said salts in a weight ratio formate to bromide of 30:70 to 60:40. Preferred salts are alkali metal formates and bromides. The saturated aqueous salts solution has a density and a total salt content exceeding that of a saturated aqueous solution of said bromide salt. |
申请公布号 |
SE514022(C2) |
申请公布日期 |
2000.12.11 |
申请号 |
SE19980000958 |
申请日期 |
1998.03.23 |
申请人 |
PERSTORP AB |
发明人 |
CARL-AXEL *SJOEGREEN;BENGT *SALLMEN |
分类号 |
C09K8/04;(IPC1-7):C09K7/02 |
主分类号 |
C09K8/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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